Article

Premature ventricular contractions arising from the intramural ventricular septum.

Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
Pacing and Clinical Electrophysiology (impact factor: 1.35). 10/2009; 32(10):e1-3. DOI:10.1111/j.1540-8159.2009.02489.x pp.e1-3
Source: PubMed

ABSTRACT A 68-year-old man with symptomatic idiopathic premature ventricular contractions (PVCs) underwent electrophysiological testing. Radiofrequency catheter ablation was unsuccessful at the earliest endocardial ventricular activation site in the left coronary cusp. Epicardial mapping via the cardiac veins was then performed. Balloon-occluded coronary sinus venography revealed the small branches of the anterior interventricular vein. Mapping with a microcatheter revealed the earliest ventricular activation and perfect pace map at the distal portion of the septal perforating branch, suggesting an intramural ventricular septal PVC origin. Catheter ablation was abandoned because of the inaccessibility of the ablation catheter to that site via the venous system.

0 0
 · 
0 Bookmarks
 · 
28 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

anterior interventricular vein
 
Balloon-occluded coronary sinus venography
 
cardiac veins
 
earliest endocardial ventricular activation site
 
earliest ventricular activation
 
Epicardial
 
intramural ventricular septal PVC origin
 
left coronary cusp
 
Mapping
 
perfect pace map
 
Radiofrequency catheter ablation
 
septal perforating branch
 
small branches
 
symptomatic idiopathic premature ventricular contractions